keyword
MENU ▼
Read by QxMD icon Read
search

fume

keyword
https://www.readbyqxmd.com/read/28213753/electrophysiologic-studies-on-the-risks-and-potential-mechanism-underlying-the-proarrhythmic-nature-of-azithromycin
#1
Mengdan Zhang, Ming Xie, Sha Li, Ying Gao, Shuyin Xue, Huili Huang, Kesu Chen, Fuming Liu, Long Chen
The mechanisms underlying arrhythmia induced by the clinical use of azithromycin are poorly understood. We aimed to investigate the proarrhythmic effects of azithromycin using electrocardiogram (ECG) and ion channel models. In vivo and in vitro guinea pig ECG and current and voltage clamp recordings were carried out. Azithromycin at 114.6 mg/kg (three times the clinically relevant dose) reduced heart rate (HR) and prolonged the PR, QRS and rate-corrected QT (QTc) intervals of guinea pig ECG in vivo. In vitro technique revealed that azithromycin at 207...
February 17, 2017: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/28212979/degradation-of-optical-and-surface-properties-of-resin-based-composites-with-distinct-nanoparticle-sizes-but-equivalent-surface-area
#2
Vinícius Esteves Salgado, Larissa Maria Cavalcante, Rafael R Moraes, Harry B Davis, Jack L Ferracane, Luis Felipe Schneider
OBJECTIVE: To determine the optical and surface properties of model resin-based composites made with distinct nanoparticle sizes but equalized surface area, among them, before and after ageing. METHODS: Model resin-based composites based on BisGMA/TEGDMA (50:50mol%) were loaded with three different fumed silica filler content (7nm/examethyldisilazane, 12nm/octylsilane, and 16nm/dimethylchlorosilane), but with equivalent surface area (BET method). The optical and surface properties of the disk-shaped specimens were measured in 24h after photoactivation (baseline) and repeated after water storage (90days at 37°C), and after abrasion (20,000 cycles of brushing)...
February 14, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28212633/cooking-smoke-and-respiratory-symptoms-of-restaurant-workers-in-thailand
#3
Chudchawal Juntarawijit, Yuwayong Juntarawijit
BACKGROUND: Restaurant workers are at risk from exposure to toxic compounds from burning of fuel and fumes from cooking. However, the literature is almost silent on the issue. What discussion that can be found in the literature focuses on the potential effects from biomass smoke exposure in the home kitchen, and does not address the problem as occurring in the workplace, particularly in restaurants. METHODS: This was a cross-sectional survey of 224 worker from 142 food restaurants in the Tha Pho sub-district of Phitsanulok, a province in Thailand...
February 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28209615/targeted-degradation-of-bet-proteins-in-triple-negative-breast-cancer
#4
Longchuan Bai, Bing Zhou, Chao-Yie Yang, Jiao Ji, Donna McEachern, Sally Przybranowski, Hui Jiang, Jiantao Hu, Fuming Xu, Yujun Zhao, Liu Liu, Ester Fernandez-Salas, Jing Xu, Yali Dou, Bo Wen, Duxin Sun, Jennifer L Meagher, Jeanne Stuckey, Daniel F Hayes, Shunqiang Li, Matthew J Ellis, Shaomeng Wang
Triple-negative breast cancers (TNBC) remain clinically challenging with a lack of options for targeted therapy. In this study, we report the development of a second-generation BET bromodomain (BRD) inhibitor, BETd-246, which exhibits superior selectivity, potency and antitumor activity. In human TNBC cells, BETd-246 induced degradation of BET transcription factors at low nanomolar concentrations within 1 hr of exposure, resulting in robust growth inhibition and apoptosis. BETd-246 was more potent and effective in TNBC cells than its parental BET inhibitor compound BETi-211...
February 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28189071/blood-lead-levels-following-consumption-of-game-meat-in-italy
#5
Silvia Fustinoni, Sabrina Sucato, Dario Consonni, Pier Mannuccio Mannucci, Angelo Moretto
The aim of this study was to measure lead (Pb) levels in blood (Pb-blood) in consumers of game meat, taking into account other possible sources of lead exposure. A spot blood sample was obtained from 95 subjects, and a questionnaire was used to collect general information and data on game meat consumption, hunting, wine drinking and other possible sources of lead exposure. Pb-blood was measured by inductively coupled plasma-mass spectrometry. Pb-blood was not influenced by age, sex, residence in an urban or rural area, consumption of game meat, tobacco smoking or hobbies associated with potential exposure to lead, and median Pb-blood was 1...
February 8, 2017: Environmental Research
https://www.readbyqxmd.com/read/28188878/towards-a-higher-level-ensifera-phylogeny-inferred-from-mitogenome-sequences
#6
Zhijun Zhou, Ling Zhao, Nian Liu, Huifang Guo, Bei Guan, Juanxia Di, Fuming Shi
Although mitogenomes are useful tools for inferring evolutionary history, only a few representative ones can be used for most Ensifera lineages. Thirty-two ensiferan mitogenomes were determined using ABI Sanger sequencing and standard primer walking of 2-3 overlapping Long-PCR fragments, or Illumina® HiSeq2000 for "shotgun" sequenced long-PCR-amplified mitochondrial or total genomic DNA. Six patterns of gene arrangements, including the novel trnR-trnS(AGN)-trnA-trnN-trnG-nad3 in Lipotactes tripyrga (Lipotactinae), were identified from 59 ensiferan mitogenomes...
February 8, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28187268/fibroblast-growth-factor-signaling-mediates-pulmonary-endothelial-glycocalyx-reconstitution
#7
Yimu Yang, Sarah M Haeger, Matthew A Suflita, Fuming Zhang, Kyrie L Dailey, James F Colbert, Joshay A Ford, Mario A Picon, Robert S Stearman, Lei Lin, Xinyue Liu, Xiaorui Han, Robert J Linhardt, Eric P Schmidt
RATIONALE: The endothelial glycocalyx is a heparan sulfate-rich endovascular structure critical to endothelial function. Accordingly, endothelial glycocalyx degradation during sepsis contributes to tissue edema and organ injury. OBJECTIVE: We determined the endogenous mechanisms governing pulmonary endothelial glycocalyx reconstitution, and if these reparative mechanisms are impaired during sepsis. METHODS: We performed intravital microscopy of wild-type and transgenic mice to determine the rapidity of pulmonary endothelial glycocalyx reconstitution after non-septic (heparinase-III-mediated) or septic (cecal ligation and puncture-mediated) endothelial glycocalyx degradation...
February 10, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28183108/comments-on-the-genus-i-zalarnaca-i-gorochov-2005-orthoptera-gryllacrididae-gryllacridinae-with-two-new-combinations-and-two-new-synonyms
#8
Fuming Shi, Baojie DU, Xun Bian
Two new combinations of the genus Zalarnaca Gorochov, 2005 are reported and illustrated, i.e. Zalarnaca (Glolarnaca) sinica (Li, Liu & Li, 2016) com. nov.; Zalarnaca (Glolarnaca) hainanica (Li, Liu & Li, 2016) com. nov. Also two synonyms are confirmed: Prosopogryllacris chinensis Li, Liu & Li, 2016 synonymized with Eugryllacris elongata Bian & Shi, 2016, and Prosopogryllacris incisa Li, Liu & Li, 2016 synonymized with Eugryllacris longifissa Bian & Shi, 2016. All material examined is deposited in the Museum of Hebei University...
January 10, 2017: Zootaxa
https://www.readbyqxmd.com/read/28181029/smoking-modify-the-effects-of-polycyclic-aromatic-hydrocarbons-exposure-on-oxidative-damage-to-dna-in-coke-oven-workers
#9
Jin Yang, Hongjie Zhang, Huitao Zhang, Wubin Wang, Yanli Liu, Yanfeng Fan
PURPOSE: Coke oven emissions containing polycyclic aromatic hydrocarbons (PAHs) are predominant toxic constituents of particulate air pollution that have been linked to increased risk of lung cancer. Numerous epidemiological studies have suggested that oxidative DNA damage may play a pivotal role in the carcinogenic mechanism of lung cancer. Little is known about the effect of interaction between PAHs exposure and lifestyle on DNA oxidative damage. METHODS: The study population is composed by coke oven workers (365) and water treatment workers (144), and their urinary levels of four PAH metabolites and 8-hydroxydeoxyguanosine (8-OHdG) were determined...
February 8, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28176762/systemic-serum-amyloid-a-as-a-biomarker-for-exposure-to-zinc-and-or-copper-containing-metal-fumes
#10
R Baumann, M Gube, A Markert, S Davatgarbenam, V Kossack, B Gerhards, T Kraus, P Brand
Zinc- and copper-containing welding fumes increase systemic C-reactive protein (CRP). The aim of this study was to investigate the performance of the biomarkers serum amyloid A (SAA) and soluble vascular cell adhesion molecule-1 (VCAM-1) in this regard. Fifteen male subjects were exposed under controlled conditions to welding fumes containing either zinc, or copper, or copper and zinc for 6 h. Plasma samples were collected before, 6 and 24 h after start of exposure and biomarkers therein were measured by electrochemiluminescent assay...
February 8, 2017: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/28160097/indoor-environmental-factors-associated-with-pulmonary-function-among-adults-in-an-acid-rain-plagued-city-in-southwest-china
#11
Jie Yu, Longju Zhang, Ya Luo, Yin Tang, Fangxu Tuo, Jiaqi Yang, Jie Xu
OBJECTIVE: To assess the association of indoor environmental risk factors with respiratory function among adults in an acid rain-plagued city in China where coal use is frequent. METHODS: The subjects were randomly selected in the winter season. Information on selected home environmental factors was collected through administered questionnaires. Additionally, pulmonary function tests, including Forced Vital Capacity (FVC), Forced Expiratory Volume in 1 s (FEV1), FEV1/FVC and Peak Expiratory Flow Rate (PEFR) were also performed in participants...
February 3, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28151637/interaction-of-zika-virus-envelope-protein-with-glycosaminoglycans
#12
So Young Kim, Jing Zhao, Xinyue Liu, Keith Fraser, Lei Lin, Xing Zhang, Fuming Zhang, Jonathan S Dordick, Robert J Linhardt
In February 2016, the World Health Organization declared a Public Health Emergency of International Concern on Zika Virus (ZIKV), due to its association with severe fetal anomalies of congenitally infected humans. This has led to urgent efforts by academic, federal, and industry research groups to better understand pathogenesis of ZIKV and to developing detection methods, therapeutic strategies and vaccines. Although we still do not have the entire picture of the pathogenesis of ZIKV, extensive research has been conducted on related pathogenic flaviviruses (i...
February 2, 2017: Biochemistry
https://www.readbyqxmd.com/read/28149245/acute-respiratory-distress-syndrome-in-burn-patients-incidence-and-risk-factor-analysis
#13
L Silva, L Garcia, B Oliveira, M Tanita, J Festti, L Cardoso, L Lavado, C Grion
After a burn lesion, Acute Respiratory Distress Syndrome (ARDS) may occur via direct lung injury due to inhaled smoke and fumes or mediated by the inflammatory response associated with the burn or its infectious complications. The aim of the present study is to assess the epidemiologic profile of ARDS in adult burn patients admitted to intensive care in a burn unit at a university hospital. A prospective cohort study was performed from January to December 2012. Demographic and diagnostic data, prognostic scores, etiology and data on the extent and depth of burns were collected...
September 30, 2016: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/28147312/upregulated-lncrna-snhg1-contributes-to-progression-of-non-small-cell-lung-cancer-through-inhibition-of-mir-101-3p-and-activation-of-wnt-%C3%AE-catenin-signaling-pathway
#14
Yun Cui, Fuming Zhang, Chunkai Zhu, Liang Geng, Tongde Tian, Huaimin Liu
Lung cancer is the most common and aggressive tumor in the world. Long non-coding RNA small nucleolar RNA host gene 1 (lncRNA SNHG1) play critical roles in the progression of cancers. However, the function and underlying mechanism remain unclear in lung cancer. In the current study, we found that expression of SNHG1 was up-regulated in non-small cell lung cancer (NSCLC) tissues and cell lines. NSCLC patients with high SNHG1 expression were significantly correlated with larger tumor size, advanced TNM stage, lymph node metastasis and poor overall survival than patients with low SNHG1 expression...
January 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28143664/use-of-graphene-supported-on-aminopropyl-silica-for-microextraction-of-parabens-from-water-samples
#15
Bruno Henrique Fumes, Fernando Mauro Lanças
This paper describes the synthesis, characterization and use of graphene supported on aminopropyl silica through covalent bonds (Si-G) as a sorbent for microextraction by packed sorbent (MEPS). Five parabens (methyl, ethyl, propyl, butyl and benzyl) present in water matrices were used as model compounds for this evaluation. The Si-G phase was compared to other sorbents used in MEPS (C18 and Strata™-X) and also with graphene supported on primary-secondary amine (PSA) silica, where Si-G showed better results...
January 25, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28138233/birmingham-copd-cohort-a-cross-sectional-analysis-of-the-factors-associated-with-the-likelihood-of-being-in-paid-employment-among-people-with-copd
#16
Kiran K Rai, Rachel E Jordan, W Stanley Siebert, Steven S Sadhra, David A Fitzmaurice, Alice J Sitch, Jon G Ayres, Peymané Adab
BACKGROUND: Employment rates among those with chronic obstructive pulmonary disease (COPD) are lower than those without COPD, but little is known about the factors that affect COPD patients' ability to work. METHODS: Multivariable analysis of the Birmingham COPD Cohort Study baseline data was used to assess the associations between lifestyle, clinical, and occupational characteristics and likelihood of being in paid employment among working-age COPD patients. RESULTS: In total, 608 of 1,889 COPD participants were of working age, of whom 248 (40...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28134629/liguzinediol-enhances-the-inotropic-effect-of-rat-hearts-via-inhibition-of-protein-phosphatase-pp1-and-pp2a-activities
#17
Sha Li, Huili Huang, Mengdan Zhang, Wei Wang, Shuyin Xue, Ying Gao, Ming Xie, Kesu Chen, Fuming Liu, Long Chen
It has been demonstrated that Liguzinediol (LZDO), a derivative of ligustrazine from ligusticum wallichii Franch, exerts positive inotropy in isolated rat heart mediated by the sarcoplasmic reticulum Ca-ATPase (SERCA2a). Here, we further explore the underlying mechanism of the positive inotropic effect of LZDO in rat hearts. In vivo and ex vivo rat heart experiments, biochemistry and Western blot techniques were used to analyze the rat heart contractility, SERCA2a activity, phospholamban (PLB) phosphorylation and protein phosphatase (PP1 and PP2A) activities in rat left ventricular myocytes, respectively...
January 27, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28128214/promising-gene-delivery-system-based-on-polyethylenimine-modified-silica-nanoparticles
#18
M Babaei, H Eshghi, Kh Abnous, M Rahimizadeh, M Ramezani
This article reports on the synthesis and full characterization of innovative silica-based nanoparticle composed of fumed silica as a core decorated with polyethylenimine (PEI) with different molecular weights (25, 10 and 1.8 kDa). Wide range of analytical, spectroscopic, and microscopic methods (TEM, DLS, ζ potential, elemental analysis (EA), TNBS and FTIR) were used to characterize the nanoparticles. Furthermore, transfection efficiency of these nanoparticles as non-viral vector was examined. The silica-PEI conjugates retained both the ability of PEI to fully condense plasmid DNA at low N/P ratios and suitable buffering capacity at the endosomal pH range...
January 27, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28125152/spontaneous-pneumomediastinum-experience-in-18-patients-during-the-last-12-years
#19
Patrícia Dionísio, Luís Martins, Susana Moreira, Alda Manique, Rita Macedo, Fátima Caeiro, Luísa Boal, Cristina Bárbara
Objective: To characterize clinically all of the patients with spontaneous pneumomediastinum (SPM) admitted to an adult pulmonology ward in Lisbon, Portugal. Methods: This was a retrospective descriptive study of all adult patients (≥ 18 years of age) diagnosed with SPM between January of 2004 and September of 2015. Results: At least one predisposing factor was identified in most (88.9%) of the 18 patients who presented with SPM during the study period...
January 23, 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/28115838/spotlight-on-fluticasone-furoate-umeclidinium-vilanterol-in-copd-design-development-and-potential-place-in-therapy
#20
REVIEW
Chitra Lal, Charlie Strange
COPD is characterized by persistent airflow obstruction caused by exposure to irritants including cigarette smoke, dust, and fumes. According to the latest GOLD (Global Initiative for Chronic Obstructive Lung Disease) guidelines, a combination of inhaled corticosteroids, long-acting β2 agonists, and long-acting muscarinic receptor antagonists can be used for group D COPD patients who are at high risk for exacerbations. Umeclidinium/fluticasone furoate/vilanterol is one such triple-combination therapy currently under development with some completed and several ongoing clinical trials...
2017: International Journal of Chronic Obstructive Pulmonary Disease
keyword
keyword
117890
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"